Contents

# Move the mouse across the screen to move the circle. 
# The program constrains the circle to its box. 


def setup
  size 640, 360
  no_stroke
  ellipse_mode RADIUS
  rect_mode CORNERS
  @mx, @my = 0.0, 0.0
  @easing = 0.05
  @ellipse_size = 24.0
  @edge = 100
  @inner = @edge + @ellipse_size
end

def draw
  background 51
  
  @mx += (mouse_x - @mx) * @easing if (mouse_x - @mx).abs > 0.1
  @my += (mouse_y - @my) * @easing if (mouse_y - @my).abs > 0.1
  
  distance = @ellipse_size * 2
  @mx = constrain @mx, @inner, (width  - @inner)
  @my = constrain @my, @inner, (height - @inner)
  
  fill 76
  rect @edge, @edge, width - @edge, height - @edge 
  
  fill 255
  ellipse @mx, @my, @ellipse_size, @ellipse_size 
end

Version data entries

10 entries across 10 versions & 1 rubygems

Version	Path
ruby-processing-2.6.3	samples/processing_app/basics/input/constrain.rb
ruby-processing-2.6.2	samples/processing_app/basics/input/constrain.rb
ruby-processing-2.6.1	samples/processing_app/basics/input/constrain.rb
ruby-processing-2.6.0	samples/processing_app/basics/input/constrain.rb
ruby-processing-2.5.1	samples/processing_app/basics/input/constrain.rb
ruby-processing-2.5.0	samples/processing_app/basics/input/constrain.rb
ruby-processing-2.4.4	samples/processing_app/basics/input/constrain.rb
ruby-processing-2.4.3	samples/processing_app/basics/input/constrain.rb
ruby-processing-2.4.2	samples/processing_app/basics/input/constrain.rb
ruby-processing-2.4.1	samples/processing_app/basics/input/constrain.rb